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H; E. DODSONA. DISK GULTIVATOR.

' Patented Deo. 18, 1894.

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(No Model.) 2 Sheets-Sheet 2.

l H. E. DODSON.

DISK CULTIVAJJOR.4

vN0. 530,932. PatentedDec. 18, 1894.

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Tn: rmRRls PtrERS G0.. PHoYO-Lqmo.. WASHINGTON. o. c,

UNITED STATES PATENT OFFICE.

HARRY E. DODSON, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE P. P. MAST &

COMPANY, OF

SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 530,932, dated December 18, 1894.

Application tiled April 6, 1894- Serial No. 506,588. (No model.)

To'wZZ whom it may concern:

Be it known that I, HARRY E. DoDsoN, a citizen of .the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Im-l provements in Disk Cultivators, of which the following is a specification,` reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in cultivators and the peculiar novel features are hereinafter fully described and particularly pointed out in 'the claims.

In the accompanying drawings on which like reference letters indicate corresponding parts: -Figure 1, is a plan View of my improved cultivator; Fig. 2, a detail view ot one of the axle connections; Fig. 3, a sectional view of the same in detail, Fig. 4, a detail view showing a part of the main frame and the connection of the axle; Fig. 5, a rear elevation of the machine as shown infFig. 1, with the seat omitted; Fig. 6, a detail side elevation and sectional view of the fixed and movable blocks and other adjacent parts; Fig. 7, a transverse sectional View of the same on the line a; of Fig. 6; and Fig. 8a longitudinal sectional view of lthe same parts on the line 'y y of Fig. 7. f

The letter A designates the two branches of the pole or tongue which, near their forward ends, unite. A doubletree B is carried by the pole and also a cross bar C. The branches A of thepole are secured to the axle, which consists of bars D D, bolted at their ends to a casting E. This casting has a stout depending part F, curved in cross section, to stien it, as seen in Figs. 2, and 4. The stud G is cast on the lower end of the part F and a hole is formed in the flange H of the casting E. The wheel spindle I is secured to a casting J which receives the stud G. A stud K is on the casting J and lits up through an opening in the flange H. The casting J further carries a lug L, which is bolted to an arm S. Thus the casting J, in eect, forms a part of the spindle or axle and is swiveled or pivotally mounted on a vertical axis. The arms l M, shown partly in Fig. 1, 'are interconnected by a cross bar O to which is. attached at P a,"

hand lever Q, the pivot R of the hand lever extending down over the axle and being shown in Figs. 1 and 5. Thus bytaking hold of the hand lever Q when the machine is being used as a walking eultivator, the Wheels can be deflected in or out so as to move the frame of the machine laterally and carry the disk beams with it so as to deflect them to agree with the irregularities of the rows. Foot-bars S are attached in any suitable manner to the arms M and when the machine is being used asa riding cultivator and the driver is mounted on the seat T he can move themachine laterally by placing his foot ony these bars S, for the same purpose.

A stout beamU is secured upon the branches of the pole, and carries bearings V, for the rock-shaft W. One of the bearings V has a toothed segment V engaged by the spring detent X of the lever Y mounted on the rockshaft. This shaft carries arms Z which have attached lto them spring-lifting rods a, such rods attheir lower ends suitably connecting with disk-beams, whereby the latter may be raised and the disks suspended above the ground, whereby they may also be pressed downward and the disks made to take into the soil. l Referring again to the beam U, itA carriesa band b which supports the seat bars c, the forward ends of such bars being bolted to the branches of the pole, as seen at d in Fig. 1.

Referring now to the disk beams it will be seen that they consist each of two bars e, e,

'by a cap z', which tits over the bars, and by a bolt and nut.- In order to interconnect the rear ends of these disk beams, I provide a 'yoke' or arch k,which connects with the fixed bearing blocks h. These blocks have forward extensions Z, as seen in Figs. l and 8, and the arch or yoke' k is fitted into recesses in the ends of these extensions and held by screws m. The arch or yoke has a series of holes o, as seen in Fig. 5, so that the distance between the rear ends of the disk beams may be adjusted to agree with the distance between their forward ends where they are connected with the cross bar C. Thus the cross beam C, the bars e and the arch or yoke lo, form a rigid structure so far as lateral movements are concerned; and this structure is not only thus rigid in itself,but it is rigid laterally in its relation to the axle or main frame of the machine. made as to directing the wheels in and out from the line of travel so as to move the disks laterally, will be further understood.

I come now to a detailed description of the means for connecting the gang of disks with this rigid beam structure. The fixed bearing blocks or plates h are radially serrated on their under sides, as seen at 19, Figs. 6 and 7. Adjustable bearing blocks q are serrated on their upper faces to match the serrations 19. These blocks q are curved out on their under sides in a transverse direction, as seen in Fig. 7, and have longitudinal serrations, as shown at r in that figure. Rolling bearing blocks s are correspondingly curved and serrated to match the adjustable bearing blocks q. This curve of the rolling bearing blocks is there fore also transverse, as seen in Fig. 7. In a longitudinal direction these rolling blocks are straight on their upper faces so as to form a long flat bearing in that direction. To these rolling bearing blocks are secured the gang yokes t. The bolts j, above referred to, pass through the yokes t, the rolling bearing blocks s, the adjustable bearing blocks q, the fixed bearing blocks h and the cap t', and act to bind all of these parts firmly and rigidly together in any relative position in which they may have been first adjusted. The rolling bearing blocks s are slotted as seen at s' so that they may be rolled laterally about the bolts j. This adjustment of the rolling bearing blocks with respect to the beams and independently of them and with respect to the ground surface is to incline the shafts u and consequently to set the inner or the outer of the disks fu deeper or shallower in the ground, as may be required for the work at hand. Then the long bearing of the bearing blocks q on the bearing blocks s in a longitudinal direction stoutly holds the yokes t against swaying backward at their lower ends as they4 Thus the remarks hereinbefore' lateral adjustment except by y shifting the whole body of the machine from oneside to the other by properly directing the wheels; also, that the disk shafts may be tilted to and from the ground at their respective ends so that the inner or the outer disks may be adjusted deeper or shallower in respect to the ground. Further, that these shafts may be turned more or less obliquely to the line of travel. l

Iam aware that it is not new, in a broad sense, to turn or adj ust the disk shafts more or less obliquely to the line of travel, but I have an improved construction for doing this. I am further aware that it is not now new to tilt the disk shafts with respect to the ground, but I have an improved organization and arrangement for this purpose.

At w are shown socket arms carried by the rolling bearing blocks, in which is mounted a shaft w carrying Scrapers Fenders or guards y are also sometimes used and connected to the gang beams.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a cultivator, the combination with a gang beam non-movable laterally and braced to prevent twisting, but adj usted up and down, of a fixed bearing` block connected thereto,a rolling bearing block convexed laterally and substantiallystraght longitudinally,and connected with the fixed bearing block by intermediate devices, and cultivating disks whose shaft is carried by the rolling bearing block, whereby the inner or the outer of said disks may be adjusted deeper or shallower into the soil.

2. In a cultivator, the combination with a beam, a fixed bearing block and a cap engaging therewith, a rotatable bearing block, intermatching seri-ations between said bearing blocks, and a transverse serrated concave in the rotatable bearing block, a serrated rolling convexed bearing block fitting in said concave and matching with its serrations and IOO IIO

slotted laterally, a bolt which binds the three ,y

the beams, a cross-yoke secured to the rear ends of the beams, a fixed bearing block for each beam, and a rolling bearing block en gaging with each fixed bearing block, a yoke connected to each rolling bearing block, a

` shaft carriedby each yoke, and disks carried by each shaft, and abolt which binds each pair of said bearing blocks together and to their respective beams, the arrangement bewheels compensating for the lateral rigidity tween the fixed bearing blocks and the rolling of the beams. io bearing blocks and said bolts, respectively, In testimony whereof` Iafx mysignature in permitting of the rolling bearing blocks with presence of two Witnesses.

5 their yokes to be adjusted to raise and lower Y HARRY E. DODSON.

the ends of the yoke to yand from the ground Witnesses: and at different angles to the line of draft,` p O. C. KIRKPATRIOK,

and the swivel connection of thev supporting- J. W. SPAHR. 

